The question isn't about " hav[ing] someone over for dinner"; but whether you let them use your bathroom.
Sounds like you have a different attitude wrt your own, private facilities compared to the public, common ones. Maybe the difference is you don't have to clean the public toilet?
Sounds like you have a different attitude wrt your own, private facilities compared to the public, common ones. Maybe the difference is you don't have to clean the public toilet?